Fireless cooking utensil.



D. Q. MINAR.

FIRELESS CODKING UTENSILl APPLlcAnoN mw Nov. 23. |915.

Patented Nov. 21, 1916.

UNTER@ STATE@ PATENT @FFQEQ DAVID Q. MINAB, OF UPLAND, CALIFORNIA.

FIRELESS COQKING UTENSIL.

Application tiled November 23, 1915.

To all w 7mm it may concern Be it known that l, Devin Q. MINAR, a citizen ot the United States7 residing at Upland, in the county ot San Bernardino and State ot California, have invented certain new and usetul Improvements `in Fireless Cooking Utensils; and l do hereby declare the following to be atull, clear, and exact description ot the invention, such as will enable others skilled in the art to which it appertains to make. and use the same.

The invention relatesfto a tireless cooking utensil.

The object ot the present invention is to provide a simple, practical and comparatively inexpensive tireless cooking utensil adapted to contain an article or articles ot tood to be cooked and equipped with means tor permitting a iiame and heat trom a burner or tire to pass around an inner receptacle for such article or articles of toed and adapted after the same has been heated to the required degree tor starting the cooking to be closed to confine the heat within it so that it will operate as a tireless cooker dur ing the remainder ot the cooking operation.

A further object ot the invention is to provide a tireless cooking utensil ot this character adapted to reduce toa minimum the consumption ot tueland capable ot easy operation.

With these and other objects in view the invention consists in the construction and novel combination and arrangement ot parts hereinafter tully described, illustrated in the accompanying drawings and pointed out in the claims hereto appended, it being understood that various changes in the torni, proportion and minor details ot construction may be resorted to without departing trom the spirit or sacriticing any ot the advantages ot the invention.` y

In the drawing Figure l is a side elevationot a tireless cooking utensil constructed in accordance with this invention, a portion ot the inner and outer shells or kettles being broken away to show the sliding gate, Fig. 2 is a vertical sectional view ot the same. Fig. 8 is a reverse plan view ot the tireless cooking utensil on a reduced scale.

Like numerals ot reterencedesignate corresponding parts in the several tigures ot' the drawing.

In the accompanying drawing` in which is illustrated the preferred embodiment ot Specification of Letters Patent.

Patented Nov. 21, 11.916.

Serial No. 63,015.

the invention the tireless cooking utensil which is in the form ot a kettle comprises in its construction inner and outer shells 1 and Q- ot approximately semi-spherical torm preferably constructed ot cast metal and adapted to term a kettle-shaped body ot the required size. The shells l and 2 which are provided with openings 8 and 4 in their bottoms to permit the tlame and heat from a burner or tire to pass upwardly and impinge against an inner cooking utensil 5 are se-' cured together around the lire openings 3 and l by rivets 6, a. packing 7 ot asbestos or other suitable material being interposed between the inner and outer shells at the said openings 3 and el..

The packing spaces the inner and outer shells and prevents loss or escape ot insulating and heat retaining material which is arranged in the space between the inner and outer shells in thetorm ot a packing. This material preterably consists ot a lining 8 ot asbestos and a tilling or packing 9 ot comminuted soap stone or similar material. By this construction the heat is retained within the device after the burner has been put out or the device removed therefrom, the device being' adapted tor use over various stoves and heaters.

The tire openings are preferably tive or six inches in diameter but may be made ot any desired size to suit the size ot the tireless cooking utensil and in practice when the latter is placed over a stove or heater, the heat and other products ot combustion pass upward through the openings 3 and e around the exterior ot the inner cooking utensil 5 which is preferably constructed ot aluminum and provided with an aluminum cover l0. The inner aluminum cooking utensil is arranged in spaced relation with the inner shell l, being spaced therefrom by means ot lugs 1l to provide a passage tor the products ot combustion and also tor a pair ot curved slidable gates l2 adapted to be maintained in an elevated position by chains 1.3 or other suitable means while the device is being heated to start the cooking `and capable also ot being lowered trom the elevated position illustrated in tull lines in Fig. 2 ot the drawings to the dotted line lconfining the heat within the utensil.

f i The slides which are guided by the lugs 1l are cu 1ved longitudinally and transversely to conform to the coniguration or' the inner` shell 1 and .vhen they are in their lower or closed position they meet at the center. Any

other suitable means may or course be em-V ployed for closing the lire openings 3 and 4. rihe sliding gates preferably consist of heavy cast metal but they may be constructed of any other suitable material and may be insulated with non-heat conducting and retaining material. The inner shell 1 is pro vided with hook shaped projections 14 arranged to be engaged by the links of the chains 13 Ylor supporting the sliding gates.

The lireless .cooking utensil is equipped with a main insulated cover 15 having draft openings 16 and equipped with suitable closures 17 for covering the draft openings ai'ter the operation of preliminarily heating the device has been completed. sures 17 are preferably pivoted but any other suitable means may of course be provided for covering the draft openings of the main cover o1 the lireless cooking utensil. The tireless cooking utensil may be constructed of various sizes and it is adapted for cooking separate articles of food and adapted to reduce to a minimum the consumption of iuel.

The main insulating cover is provided at its periphery with a flange which when the cover 15 is in position nts between the inner and outer shells and rests against the interposed packing 9. rlhe cover is also provided with a central handle 19 having a central opening which extends through the cover and constitutes a central draft opening for permitting a uniform flow of heat around the cooking utensil. rlhe tireless cooker may be provided with supporting legs to enable it to be arranged upon a stove or other heating device in spaced relation with the same.

llVhat is claimed is 1. ik tireless cooking utensil comprising inner and outer' shells arranged in spaced relation and provided with bottom openings, insulating material arranged in the space between the shells for retaining heat within the devices, said shells and insulating material constituting a substantially kettle shaped body adapted to be placed upon a stove or heater, an inner removable cooking utensil arranged within the inner shell, a cover for the inner and outer shells and means for covering the bottom opening without removing the said body from the stove or heater.

2. A lireless cooking utensil comprising inner and outer shells arranged in spaced relation and provided with bottom openings, insulating material arranged in the space between the shells for retaining heat within the devices, said shells and insulating material constituting a substantially kettle The clo-Y shaped body adapted to be placed on a stove or heater, an inner removable cooking utensil arranged within the inner shell, a cover for the inner and outer shells, slidable gates or closures for the bottom opening, and means for operating the gases or closures without removing the body from a stove or heater.

3. A iireless cooking utensil comprising inner and outer shells arranged in spaced rela-tion and provided with bottom openings, insulating material arranged in the space between the shells for retaining heat within theY devices, an inner removable cooking utensil arranged within the inner shell, a cover for the inner and outer shells and slidable gates or closures for the bottom opening, said gates or closures operating between the inner shell and the inner cooking utensil.

4. A tireless cooking utensil comprising inner and outer shells arranged in spaced relation and provided with bottom openings, insulating material arranged in the space between the shells for retaining heat within the devices, said shells and insulating material forming a substantially kettle shaped body adapted to be placed upon a stove or heater, an inner removable cooking utensil arranged within the inner shell, a cover for the inner and outer shells, slidable gates or closures for covering and uncovering the bottom opening, and operating means connected with the gates or closures and adapted to support the same in an elevated position and capable also of closing the gates or closures without removing the said body from the stove or heater. Y

5. A tireless cookingr utensil having a bottom opening and provided with a cover, an inner removable vessel or utensil arranged in spaced relation with the tireless cooker, sliding gates operating between the lireless cooker and the inner removable receptacle or vessel and means 'for holding the same in an open position.

6. A tireless cooking utensil comprising a body having an opening in the bottom and provided with insulating material, said body being adapted to be placed upon a stove or heater, a removable inner utensil arranged in spaced relation with the body to permit heat and products of combustion to pass upward around it, a closure for the bottom opening, means for operating the closure without removing the body from the stove or heater, and a cover for the said body.

7. A iireless cooking utensil comprising inner and outer shells arranged in spaced relation and provided with bottom openings, an annular packing ring interposed between the inner andY outer shells at the bottom` opening, fastening means piercing the inner and outer shells and the packing ring and` without removing the body from a stove or heater.

In testimony whereof I affix my signature in presence of two witnesses.

DAVID Q. MINAR.

uniting the same to form a substantially kett-le shaped body adapted to be placed on a stove or heater, insulating and heat retaining material arranged in the space between the shells7 an inner removable cooking utensil, a Cover for the inner and outer shells and a closure for the bottom openings of the shells having means for operatlng it Witnesses C. K. CHADWICK, HAZEL WRIGHT.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

